Every hour a quality control inspector measures the outside diameter of five parts. If the average of the means is 5and the average range is 1.3, what is the upper control limit for the X-bar chart for this process?O a. -5.92O b. 0O c. 6.12O d. 4.74O e. 5.75

The upper control limit gets used to mark the point past which a sample value can be considered a…

Answered: Every hour a quality control inspector…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

Section: Chapter Questions

Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...

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A process that is assumed to be in control with limits of 91 +2 had sample averages for the X-bar chart of the following: 87.1, 87, 87.2, 89, 90, 88.5, 89.5, and 88. Which of the following statement below are correct? O a. Process mean is not in-control O b. None is correct O c. Process mean is in-control O d. Not enough information to determine
Every hour a quality control inspector measures the outside diameter of four parts. If the average of the means is 5 and the average range is 1.3, what is the upper control limit for the X-bar chart for this process? O a. 5.95 O b. 5.19 6.12 O d. 0 O e. -5.92
A green belt is going to monitor the process by collecting more than 10 samples per group. Which of the following control charts would be most appropriate ? a. I-MR b. Xbar R c. X bar S d. np chart (Don't Hand writing in solution) .
In an existing process, we have found that the lower control limit for X-bar chart is 8.08. Whereas, the lower and upper control limits for R-chart are 0 to 2.25 respectively. The following measurements for one sample are taken: 8.5, 8.9, 8.28, and 8.7. Using both the X-bar chart and R- chart for this particular sample, what we can conclude about the overall process a. Insufficient information to conclude b. Process is in-control C. Perfect process d. Process is out-of-control.
What procedures would you recommend to maintain proper quality control?
Given there are five (05) sample taken. The sample means (X-bar) are; 15.36,14.61,16.36,20.28, and 15.77 respectively. Also, the corresponding ranges are; 10.79, 8.37, 4.81, 8.17, and 3.31 respectively. If the upper control limit for X-bar chart is 20.59, what should be the most appropriate the sample size? О а. 5 O b. 3 О с. 4 O d. 2 O e. None is correct БЕ NEXT PAGE https://elearn.sc 321
A manager wishes to build a control chart for a process. A total of five (05) samples are collected with four (04) observations within each sample. The sample means (X-bar) are; 15.36,14.61,16.36,20.28, and 15.77 respectively. Also, the corresponding ranges are; 10.79, 8.37, 2.81,8.17, and 3.31 respectively. The lower and upper control limits of the x-bar chart are ,respectively O a. 11.59, 21.36 O b. 16.55, 11.47 Oc. 18.55, 13.47 O d. None is correct O . 12.40, 19.72
In an existing process, we have found that the lower and upper control limits for X-bar chart are 8.09 and 8.59 respectively. Whereas, the lower and upper control limits for R-chart are 0 to 1.25 respectively The following measurements for one sample are taken: 8.05, 9.14, 8.28, and 9.25. Using X-bar chart only, what we can conclude about the process mean O a. Insufficient information to conclude O b. Process mean is out-of-control. O c. Process mean is in-control O d. Overall process is in-control
In an existing process, we have found that the lower and upper control limits for X-bar chart are 8.08 and 8.59 respectively. Whereas, the lower and upper control limits for R-chart are 0 to 1.25 respectively. The following measurements for one sample are taken: 8.5, 9.14, 8.28, and 12.77. UsingX-bar chart only, what we can conclude about the process mean O a. Process mean is out-of-control. O b. Process mean is in-control O c. Insufficient information to conclude O d. Overall process is in-control
quality control You are a quality manager in Infinity automotive company, and you are in the processof setting-up a Shewhart control chart, and you have collected five samples from theproduction line, where n= 5. Based on control chart rules you should collect at least20 samples to determine X-bar and R-bar, which will become the center line of yourchart, but you have decided to cut-corners and are planning to base your chart on onlythese five samples. Calculate the value of X-bar and R-bar of these five samples. Thesamples data collected from the production line is given in Table Q4.1. Note n = 5.
A manager wishes to build a 3-sigma range chart for a process. The sample size is five, the mean of sample means is 40.75, and the average range is 10.30. From Table S6.1, the appropriate value of D3 is 0, and D4 is 2.115. What are the UCL and LCL, respectively, for this range chart? A.8.37 and 0.00 B.71.65 and 9.85 C.12.42 and 8.19 D.21.78 and 0.00 E.51.05 and 30.45

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Every hour a quality control inspector measures the outside diameter of five parts. If the average of the means is 5 and the average range is 1.3, what is the upper control limit for the X-bar chart for this process? O a. -5.92 O b. 0 O c. 6.12 O d. 4.74 O e. 5.75